Blocking Proxy Web Sites that Bypass Filters

Problem

I am hoping to consolidate ideas or solutions to the everg-rowing website proxy sites that bypass filters. I have been monitoring and inputing new rules and these sites come up.

Solution

I find using the proxy cache monitor NWAdmin very effective on finding the commonly used sites
and I also use BRDstats to create the HTML statistics logs of every 10MB log file I have. We currently do not use a 3rd party content filter, so therefore it's very hard to keep up the paces with these new sites that come up. I noticed that many of the sites are now providing automatic email of new proxy sites to help keep ahead of the filters.